Hello technet folks!
I migrated some accounts from Gmail Entreprise to Exchange 2013 on premise.
Migration went pretty well .. I migrated 10 boxes by dumping PST with Outlook 2013 and google apps sync and reinjected the PST in Exchange account.
Everybody got his old emails from Gmail in Exchange ... MX zone is migrated, they can received and send email correctly.
However, they have a weird issue when answering to a mail they received BEFORE the migration from Gmail to Exchange. The mail is here, and when they click on "answering", the destination email does not exist anymore. Actually, the name of destination is here but not his email address. The vcard of the destination got the name, but all other information are empty (phone, company, email address). So if they send the mail, it will be bounced back ... with error '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'. If they replace the name with the real email address, then it works.
Any idea why, during the migration the email address of each mail is not kept in its body ?
Any help appreciated !
Greg